Finding the Fourth Proportional to 28,346.52, 42,508.83 and 13,551.48

Step by Step Solution

1. Step 1: Write the proportion equation
   28,346.52 : 42,508.83 = 13,551.48 : x
2. Step 2: Convert to fraction form
   28,346.52/42,508.83 = 13,551.48/x
3. Step 3: Cross multiply
   28,346.52x = 42,508.83 × 13,551.48
4. Step 4: Simplify right side
   28,346.52x = 576,057,559.57
5. Step 5: Solve for x
   x = 576,057,559.57/28,346.52
6. Step 6: Final answer
   x = 20,321.99